#PI0762: Coolant Leak at Water Pump - (Jul 11, 2012)

[mcg75]

Models:

2011-2012 Chevrolet Cruze

Equipped with 1.4L Turbo Engine (RPO LUJ) Some customers may comment on a coolant leak, low coolant reservoir level, a hot engine message or lack of heat as a result of low coolant levels. Coolant may be leaking from the water pump mounting bolts. Recommendation/Instructions If the water pump mounting bolts are leaking, do not attempt to tighten or put sealer on the bolts. The water pump and gasket should be replaced. The water pump does not come with the gasket. The water pump and the water pump gasket should be ordered separately. When replacing the water pump, the thermostat housing seal also needs to be replaced. Parts Information Part Number Description 55579016 PUMP, WAT 55568033 SEAL, W/PMP 55579010 THERMOSTAT, ENG COOL (Includes Seal) Warranty Information For vehicles repaired under warranty, use: Labor Operation Description Labor Time J3480 Water Pump Replacement Use Published Labor Operation Time

[Bohdan]

Now this is a new twist to the water pump problems. There mounting bolts may be leaking.

[crzyfirefighter]

just had this done on my car...

[70AARCUDA]

Notice how the "seal" is not included with the pump = DUMB!

That's DUMB because when a new pump is installed, a new seal is always required!

[Kinmartin0789]

Notice how the "seal" is not included with the pump = DUMB!

That's DUMB because when a new pump is installed, a new seal is always required!

so what if its not included with it. maybe they use a different manufacturer for it. all that matters is that the bulletin says use a new one and here's the part number. there is no need for calling anything dumb...

[70AARCUDA]

so what if its not included with it. maybe they use a different manufacturer for it. all that matters is that the bulletin says use a new one and here's the part number. there is no need for calling anything dumb...

...except when it takes two weeks to get Warranty repair of a leaking thermostat housing because the local stealership doesn't KNOW that the seal ISN'T included, thus making a one-day job into a 13 day job!

...and, that's after GM is aware of the problem and yet has NOT stocked the necessary parts needed!

[jsusanka]

Models:

2011-2012 Chevrolet Cruze

Equipped with 1.4L Turbo Engine (RPO LUJ) Some customers may comment on a coolant leak, low coolant reservoir level, a hot engine message or lack of heat as a result of low coolant levels. Coolant may be leaking from the water pump mounting bolts. Recommendation/Instructions If the water pump mounting bolts are leaking, do not attempt to tighten or put sealer on the bolts. The water pump and gasket should be replaced. The water pump does not come with the gasket. The water pump and the water pump gasket should be ordered separately. When replacing the water pump, the thermostat housing seal also needs to be replaced. Parts Information Part Number Description 55579016 PUMP, WAT 55568033 SEAL, W/PMP 55579010 THERMOSTAT, ENG COOL (Includes Seal) Warranty Information For vehicles repaired under warranty, use: Labor Operation Description Labor Time J3480 Water Pump Replacement Use Published Labor Operation Time

I wonder if the coolant leak is so little they can't find it. I had my car do the dye test and they cannot find a leak but say they do notice a smell and my coolant level keeps dropping.

[SilverCruzer]

Been a long while since I have been on this board.
I have owned my Cruze since October 2010, have over 42K miles on it, and now am troubled by a coolant leak.
The dealer told me today that it was about a gallon low and I topped it off about a month ago. They went over everything and could not find a leak. They are also aware of this bulletin.
For those that have had a low-coolant level leak fixed, what was the smoking gun? What did they finally catch?

[70AARCUDA]

...there are two types of "leaks": (1) external leaks where you are physically to see the escaping coolant and (2) internal leaks where the coolant escapes someplace it wasn't intended to go, such as leaks inside the turbo or engine itself, which cannot be seen, only diagnosed by competent investigation.

[XtremeRevolution]

I'm moving this up to a sticky as more reports are coming in. If this becomes a TSB and someone can get that TSB number, please post it

I'm currently in touch with Tom Read regarding these water pump issues.